Please click on a test name to see more information. 

For Reference Ranges related to any specific test please email refranges@tdlpathology.com  

 

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Lactate (Plasma)

Code Sample Reqs Turnaround
LACT G [16] 1 day
Special instructions
[16] Lactate. Sample: Fluoride oxalate plasma only. On ice and separate from cells 15-30 mins, analyse promptly. Handle with care as sweat contains large amounts of lactate. No tourniquet.
Patient: Rest 30 mins prior to test.

 

Lactate Dehydrogenase (LDH)

Code Sample Reqs Turnaround
LDH B 4 hrs
Special instructions
 

 

Lactate Pyurvate Ratio

Code Sample Reqs Turnaround
LPR J [1] 4-6 weeks
Special instructions
[1] Contact the laboratory for special sample tubes/containers/instructions.

 

Lactose Tolerance Test

Code Sample Reqs Turnaround
LTT J [1] 8 hrs
Special instructions
[1] Contact the laboratory for special sample tubes/containers/instructions.

 

Lamotrigine

Code Sample Reqs Turnaround
LAMO B [4] 5 days
Special instructions
[4] Send to the laboratory without delay.

 

Langer-Giedion Syndrome – BOBs (5 days) + karyotype (15 days)

Code Sample Reqs Turnaround
PBOB, KARY CVS / AF / A H [9] 5-15 days
Special instructions
[9] Clinical history must be provided.

 

Langer-Giedion Syndrome – BOBs only

Code Sample Reqs Turnaround
PBOB CVS / AF / A [9] 5 days
Special instructions
[9] Clinical history must be provided.

 

Latex Components

Code Sample Reqs Turnaround
ZZ13 B 2 days
Special instructions
 

 

LDH lsoenzymes

Code Sample Reqs Turnaround
ISOL B 5 days
Special instructions
 

 

LDL7 Subfractions

Code Sample Reqs Turnaround
LDL7 B 10 days
Special instructions
 

 

Lead (Blood)

Code Sample Reqs Turnaround
LEAD A 5 days
Special instructions
 

 

Lead (Urine)

Code Sample Reqs Turnaround
URPB RU 5 days
Special instructions
 

 

Lead Profile (Hb, ZPP, Lead)

Code Sample Reqs Turnaround
LEAZ A [13] 3-5 days
Special instructions
[13] Protect from light.

 

Legionella Antibodies

Code Sample Reqs Turnaround
LEGO B 2 days
Special instructions
 

 

Legionella Urine Antigen

Code Sample Reqs Turnaround
LEGA RU 1 day
Special instructions
 

 

Leishmania Antibodies

Code Sample Reqs Turnaround
LEIS B 5 days
Special instructions
 

 

Leishmania Blood Film

Code Sample Reqs Turnaround
LEIF A 8 hrs
Special instructions
 

 

Leptin

Code Sample Reqs Turnaround
LEPT B [19] 5 days
Special instructions
[19] Must include patient’s age, height and weight.

 

Leptospirosis (Weil’s Disease) Abs (IgM)

Code Sample Reqs Turnaround
LEP B 5 days
Special instructions
 

 

Leucine Amino Peptidase

Code Sample Reqs Turnaround
LAP B 5 days
Special instructions
 

 

Leucocyte Antibody Detection Panel FEMALE

Code Sample Reqs Turnaround
8RF B  [3] [4] [6] 1 week
Special instructions
[3] Clinical history essential and protect from light.
[4] Send to the laboratory without delay.
[6] Contact the Referrals Department before taking and sending sample to the laboratory.
Must also arrive with partners 7RF samples.

 

Leucocyte Antibody Detection Panel MALE

Code Sample Reqs Turnaround
7RF H H H [3] [4] [6] 1 week
Special instructions
[3] Clinical history essential and protect from light.
[4] Send to the laboratory without delay. 
[6] Contact the Referrals Department before taking and sending sample to the laboratory.
Must also arrive with partners 8RF samples.

 

Leukaemic Studies (Bone Marrow) – please send with complete Leukaemic Studies Request form at back of guide

Code Sample Reqs Turnaround
CBMA A H [9] [11] Contact Lab 5-20 days
Special instructions
[9] Clinical history must be provided.
[11] Patient consent required. Consent Form can be found at the back of the TDL Laboratory Guide.

 

Leukotriene E4

Code Sample Reqs Turnaround
LTE4 CU (Frozen) 3 weeks
Special instructions
 

 

Levetiracetam (Keppra)

Code Sample Reqs Turnaround
LEVE B [4] 3 days
Special instructions
[4] Send to the laboratory without delay.

 

Lipase

Code Sample Reqs Turnaround
LIPA B 4 hrs
Special instructions
 

 

Lipid Profile

Code Sample Reqs Turnaround
LIPP B 4 hrs
Special instructions
 

 

Lipid Transfer Proteins

Code Sample Reqs Turnaround
ZZ23 B 2 days
Special instructions
 

 

Lipocalins

Code Sample Reqs Turnaround
ZZ28 B 2 days
Special instructions
 

 

Lipoprotein (a)

Code Sample Reqs Turnaround
LPOA B 4 hrs
Special instructions
 

 

Lipoprotein Electrophoresis

Code Sample Reqs Turnaround
LEL B 5 days
Special instructions
 

 

Listeria Antibody

Code Sample Reqs Turnaround
LIST B 4 days
Special instructions
 

 

Lithium (take 12 hrs after dose)

Code Sample Reqs Turnaround
LITH B 4 hrs
Special instructions
 

 

UPDATE

Liver Fibrosis (Enhanced Liver Fibrosis ELF)

Code Sample Reqs Turnaround
ELF B 5-7 days
Special instructions
 

 

Liver Fibrosis Fibrotest

Code Sample Reqs Turnaround
FIBT B 2 weeks
Special instructions
 

 

Liver Function Tests

Code Sample Reqs Turnaround
LFT B 4 hrs
Special instructions
 

 

Liver Kidney Microsomal Antibodies

Code Sample Reqs Turnaround
LKM B 2 days
Special instructions
 

 

Lorazepam

Code Sample Reqs Turnaround
LORA A [4] 10 days
Special instructions
[4] Send to the laboratory without delay.

 

Lp-PLA2 (PLAC) Test

Code Sample Reqs Turnaround
PLA2 B 2 days
Special instructions
 

 

LSD

Code Sample Reqs Turnaround
LSD RU 5 days
Special instructions
 

 

Lupus Anticoagulant and Anticardiolipin Abs

Code Sample Reqs Turnaround
LUPA B C [4] [18] 2 days
Special instructions
[4] Send to the laboratory without delay.
[18] Citrate Samples. Samples should be double spun and separated and frozen within 4-8 hours of sample taking, if a delay is expected with transportation to the laboratory, samples must be transported as frozen.

 

Lupus Anticoagulant only

Code Sample Reqs Turnaround
LUPC C C [18] 2 days
Special instructions
[18] Citrate Samples. Samples should be double spun and separated and frozen within 4-8 hours of sample taking, if a delay is expected with transportation to the laboratory, samples must be transported as frozen.

 

Lutein

Code Sample Reqs Turnaround
LUTE B [13] 2 weeks
Special instructions
[13] Protect from light.

 

Luteinising Hormone (LH)

Code Sample Reqs Turnaround
LH B 4 hrs
Special instructions
 

 

Lycopene

Code Sample Reqs Turnaround
LYCO B 4-7 days
Special instructions
 

 

Lyme Disease (Borrelia Abs) IgG, IgM

Code Sample Reqs Turnaround
BORR B [9] [14] 2 days
Special instructions
[9] Clinical history must be provided.
[14] Provide details of travel history.

 

Lyme Disease (Borrelia Abs) IgM

Code Sample Reqs Turnaround
BORM B 2 days
Special instructions
 

 

Lymphocyte Immunophenotyping (Leukaemia)

Code Sample Reqs Turnaround
LYPT A [4] [5] 5 days
Special instructions
[4] Send to the laboratory without delay.
[5] Do not send sample to the laboratory between Thursday noon and Monday morning.

 

Lymphocyte Subsets (CD3 / CD4 / CD8)

Code Sample Reqs Turnaround
LYSS A [10] / Chex 1 day
Special instructions
[10] Contact the laboratory for special stability tubes for lymphocyte subsets - or take an EDTA sample and ensure same day delivery to the laboratory, Monday to Friday noon [do not send sample between Friday noon and Monday morning].

 

Lymphogranuloma Venerium (LGV)

Code Sample Reqs Turnaround
LGVP J 2 weeks
Special instructions
 

 

Lysosomal Enzyme Screen

Code Sample Reqs Turnaround
LE H H  [6] 2 months
Special instructions
[6] Contact the Referrals Department before taking and sending sample to the laboratory.

 

Lysozyme

Code Sample Reqs Turnaround
LYSO B 5 days
Special instructions